'Neptunian' definitions:
Definition of 'Neptunian'
From: GCIDE
- Neptunian \Nep*tu"ni*an\, Neptunist \Nep"tu*nist\, prop. n. [Cf. F. neptinien, neptuniste.] (Geol.) One who adopts the Neptunian theory. [1913 Webster]
Definition of 'Neptunian'
From: GCIDE
- Neptunian \Nep*tu"ni*an\, prop. a. [L. Neptunius belonging to Neptune: cf. F. neptunien.]
- 1. Of or pertaining to the ocean or sea. [1913 Webster]
- 2. (Geol.) Formed by water or aqueous solution; as, Neptunian rocks. [1913 Webster]
- Neptunian races (Ethnol.), the Malay and Polynesian races.
- Neptunian theory (Geol.), the theory of Werner, which referred the formation of all rocks and strata to the agency of water; -- opposed to the Plutonic theory. [1913 Webster] Neptunian